How to dim Tesla's skylight?

According to Tesla's latest approved technology patent, the interior lighting can be adjusted according to the preferences of drivers and passengers. 1. First of all, the most intuitive benefit is the addition of an electrically controlled dimming material, which can limit the amount of light entering through the skylight. This has the obvious advantage of preventing the sun from shining on the driver's sight or passenger's comfort. The second advantage is to create your own light source. The luminous layer is embedded in the skylight, so the skylight can still provide limited illumination for the interior without external light source, and allow drivers and passengers to adjust the color and intensity through the entertainment system of the center console. This is the patent of skylight with light and shadow function. In fact, these two systems have appeared in high-end cars. Mercedes-Benz's Magicsky control function can add an electric dimmer to the skylight glass; BMW's skylounge embeds LED lighting in the skylight.